How to choose the right cobot for my factory?Choose a cobot by proving that the complete application can meet your factory's required output, quality, and safety conditions. Begin with the process and workcell layout, then select the arm, tooling, controller, and supporting equipment. Payload and reach are necessary screening criteria, but they do not establish cycle time, process capability, or whether collaborative operation is suitable.  Translate the task into engineering requirementsMeasure the heaviest part and include the gripper, adapters, sensors, and carried services in the load assessment. Check the manufacturer's permitted center of gravity, moments, inertia, and operating conditions. Map the actual tool path, including approach and withdrawal movements. A nominal reach figure does not prove that the wrist can reach every position with the required orientation while avoiding fixtures, cables, and singularities. Evaluate the complete production cycleTime gripping, travel, machine waiting, inspection, unloading, and replenishment. Separate the robot's motion time from the station's total cycle time. Assess worst-case products and the number of interruptions per shift. If production requires sustained high-speed handling, compare a guarded industrial robot or dedicated machine as well; a cobot is not automatically the most productive or economical solution. Check integration and working conditionsConfirm supported communication interfaces, available I/O, compatible end effectors, software versions, and access to documentation. Validate environmental protection for the arm, controller, pendant, and tooling separately. Coolant, dust, heat, food contact, or cleanroom requirements may demand specialized equipment. Also check mounting stiffness, utilities, maintenance access, and whether a new cell will obstruct people or material flow. Require a representative acceptance testAsk for a trial using your parts and intended tooling, with a target for good parts per hour, quality results, changeover time, and recovery. Include an application risk assessment and validation of selected safeguards. Record assumptions and responsibilities before ordering. The right cobot is the one that passes this complete test and can be maintained by your team, not necessarily the model with the largest payload or lowest advertised price. Explore related resourcesHow do I choose the right payload for a robotic arm? How do I choose the right reach for a robotic arm? How should I compare robotic arm models before buying? Explore the pictured robot: Universal Robots UR10e Sources and further readingUniversal Robots user manual and procurement FAQ; A3 robot safety and risk assessment training resources. Cobot image galleryPictured examples: Universal Robots UR10e; Doosan Robotics A0509; FAIRINO FR10. Product illustrations do not represent a complete installed workcell. |